moonbeam/tools/moon-key.ts at master · dominicletz/moonbeam

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import { mnemonicToSeedSync, generateMnemonic } from "bip39";

import { hdkey } from "ethereumjs-wallet";

import yargs from "yargs";

const argv = yargs(process.argv.slice(2))

.usage('Usage: $0 [--mnemonic "..."] [--account-index x]')

.version("1.0.0")

.options({

mnemonic: { type: "string" },

"account-index": { type: "number", default: 0 },

strength: { type: "number", default: 256 },

}).argv;

const account_index = argv["account-index"];

const strength = argv["strength"];

const mnemonic = argv["mnemonic"] || generateMnemonic(strength);

const main = async () => {

const hdwallet = hdkey.fromMasterSeed(mnemonicToSeedSync(mnemonic));

const path = `m/44'/60'/0'/0/${account_index}`;

const wallet = hdwallet.derivePath(path).getWallet();

console.log(`Address: ${wallet.getAddressString()}`);

console.log(`Mnemonic: ${mnemonic}`);

console.log(`Private Key: ${wallet.getPrivateKeyString()}`);

console.log(`Path: ${path}`);

};

main();